Machine for winding insulated coils and the like.



7G. H. THORDARSUN. MACHINE FOR WINDING INSULATED cons AND THE LIKE.

. APPLICATION FILED JAN.24,1913.

1, 1 1 3,718. Patented 001;. 13, 1914 C. THORDARSON.

.MAGHINE FOR WINDING INSULATED COILS AND THE LIKE. APPLICATION FILED JAN.24,1913.

ms WMm |zzIV///////mm 01 7' 'H g h 4 65 QT 07 61719071. aw WWW? To all whom it may concern CHESTER H. THO-ItDARSON, OF CHICAGO, ILLINOIS.

MACHINE ron WINDING Specification of Letters Patent.

INs LArEncoILs AND THE LIKE.

PatentedOct. 13, 1914.

' Application filed January 24, 1913. Serial No. 744,002.

Be it known that I, CHESTER H. THoRDAm so.*-, a citizen of the-United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvemen s in Machines for Winding Insulated Coils and the like;

and I do hereby declare that the followin is a full, clear, and exact description thereo reference being had to the accompanying drawings, and to the characters of reference marked thereon, Which form a part of this specification.

This invention relates to a novel machine for producing electro magnetic coil Windings made from flat Wire, the turns of Which are insulated from each other by a thin strip or strips ofsuitable insulating material as Such a coil structure, is shown in my 'co pending application for U. S. Letters Patent, Serial NO.7 4;4:,O01 filed on the 24th day of January, 1913.

Amony the objects of the invention is to produce a machine by Which the alternate layers of Wire and insulating strips may be accurately and rapidly Wound or forme'd'into a coil or Winding unit.

Another object of the invention is to provideme'ans for assembling the Wire and insulating strip or strips and for accurately holding them in relativeflateral positionand in alin'ementwith the Winding member.

A further object of the invention is to provide means for directing the insulating strip or strips, usually a very thin paper, to the Winding mechanism, in such a Waya's to I delicately produce the required tension to draw the paper from the reels to the Winding' mechanism and to prevent the paper strips unwinding too rapidly.

' Other objects of the invention are to sim plify and improve machines of this pur pose, and the inre'ntion consists in the mat-' ter's hereinafter set forth and more particularly pointed out in the appended claims.

,In. the drawingszFigure 1 is a .1.15.1..--

vation of a m'achine embodying my inven- "tion. Fig. 2 is a partial plan vieWther-eof. 1*ig.-3 is asectionon theline' Fig. 1. Fig. 4 is a side vieW ofthe'parts' shown in Fig. 3 a Fig. Kris-a section on the line5-5 {Fi'gfd is a section on'the line G+fl6 ofll*ig. Fig. ;7; is an end'vieW of theassemblingand-guide device; showing the relation of the Wire to the insulating. strips. Fig. 8 is a detail section illustratingthe tension means for the insulating strips. As shown in the drawings, 10 designates the bed plate of the machine, supported on legs or standards. 11. 1 1 designates a Winding form of generally rectangular cross section, herein shown. It is detachably fixed to a shaft 15 that is mounted in suitthe machine, and it extends slightly beyond the lateral side of the bed plate. Fixed to the shaft 15 is a gear Wheel 18 that meshes With a pinion 19 carried by the shaft of an electric motor 20 by Which thewinding form is rotated at a suitably SlOW speed. l

2. designates a frame oar .Whicli rises from one side of the bed plate andi s notched at 23 to receive the spindle of a reelor spool 24 on Which is Wound a roll of the flat Wire 25 Which constitutes part of the coilwinding to be produced. The roll of Wli'QlS protected on said reel by horlzontal-ar1dvertical guides 26, Said Wire-is guided f om the roll beneath a guide pulley 26, supper? ed on theframe bar 22 between upper and lower pre'sser rollers 28, 29. The said'rollers are located in a grooved guide bracket 30 Which is removably; attached-to a block 31 supported on thebed'plate. The, spin-' dle of 'th'eloWer roller29 (Figs. 3 and 4) Y is rotatably mounted on the fixed side mem- .bers of the said guide bracket, While-the 1 spindle of the upperroller 28 is mounted I in sliding plates 33 fitted in notches Which open upwardl from the side members of 5 the guide bracket 30. -The said upper roller is ressed-toward the; lower roller by means against a spring 37 Which, in turn, bears against the cross'plate or "bar 38that lies upon the upper edges of the sliding plates 33. The saidroller's -28, 29ar'eprovided to smooth or i'ron out; any irregularities Which may occur in the Wire. i The Wire iscarried forwardly from said pressing or ironing rollers irito and through anj'assembl-ing; device designatedas a Whole by 40 Where the Wire is assembled With the insulating strip or stripspreparatory to winding ti-iem'intoacoil or Winding unit." It consists oi a member 41' having means to I"ernov ably attaehit to the suppo'rt31'. It-is' provided with an upper guideway 42 through which the wire passes and a lower guide way 43 through which theinsulating strips pass. The wall 44 between said upper and lower guide ways is a thin wall and constitutes the lower wall for the upper guide way and the upper wall for the lower guide way. It is at this place that the flat wire and the insulating strips are assembled, to be carried to the winding form 14. The in-" sulating strips, designated by46, 46, are unwound from rolls 47, 47 supported on reels carried by the outer ends of a cross arm 48 attached to the lower end of the frame bar 22. 49, 49 designate diverging slotted members, carried also by the frame bar 22 be.- tween the ends of the cross bar 48. In the slots of said members 49 are slidably mounted frames 50, 50 which carry tension spools 51,

51 about which the strips 46, 46 are trained on their way to a directing pulley 53 supported on theframe bar 22' and at which latter pulley the two insulating strips are brought together and directed toward the guide mechanism which guides the same to the winding mechanism. Suitable tension is maintained on the strips 46 between their rolls and the directing pulley, through the.

light to impose a very delicate tension onv the strips. v v The two insulating strips thus brought together are carried through a guide groove or way 55 inthe lower-part of the guidebracket 30 and below the pressing rollers 28, 29. .From said guide bracket 30 the two strips are carried together to the upper part I ofthe guideway 43 of the member 40. Both the flat wire and the insulating strips are pressed against the dividing wall 44 between the upperand lower guideways 42, 43 and-it is at this point that the'wire and strips are,

assembled, being dividedonly by the thickness] of the wall 44.. The said upper and the sidewalls of the slots constituting fixedlateral guides for. the edges of the; stripslowerslots are made of a width to snugly receive the wire and strips guided thereby,

- l and wire, whereby said wire and strlps are maintainedin accurate lateral position with respect to each other when brought together, and the said guideways 42,43 are arranged "in accurate alinement With/respect to the plane -ofthe winding-form 14, so that the wireand the strips are wound upon the form,

in alternate layers in accurate lateral aline-.v ment. Thesaidinsulatin strips are pref erably made wider than t e wires so'a'sto project. at'gtheir sides laterally beyond the wires when formed into the coil or wind ngstructure,- and thereby constitutemeansto.

insulate the edges of the turns of the coil fromeach other. The guideway 43 is therefore necessarily made'wider thanthe upper guideway 42 when the strips and wire are of unequal widths.

Means are provided for yieldingly pressing the strips and the wire against the wall 44 with'such pressure as will maintain the wire and strips sufliciently taut to be wound closely upon each other in the formation of 75. the coil or winding structure, but with suflicient yielding to prevent undue tension on the thin insulating strips. The means which 1 Ihave herein shown for eifecting this result is made as follows: 60, 61 designate 30 .upper and loweripresser plates, the former engaging the upper side of the flat wire to press it against the plate or wall 44and the latter engaging'the lower side of the strip to press both strips upwardly against the 35 lower side of the said plate or wall. 62, 63 designate upper and lower bowed springs, the former of which bears at itsends on the upper presser plate 60, and. the latter of which bears at its ends upon the lower presser plate 61. Said springs are pressed toward the presser plates by means of screws 64, 65, the upper one of which is screw-. threaded through a bracket 66 carried by the member 41, and the lower one is screw: threaded through the lower wall of the lower guideway 43. Said screws are shown as reduced at their ends to engage into openings in the intermediate portions of the bowed springs to constitute a reliable rota- 10o tive engagement therewith. vThe said springs constitute means for imparting the required tension to the wire and insulating strips for y the purpose described, while avoiding such tension as to tear the strips. The springsmay be held in relative POST". tion to the presser plates by means of lugs 68, 69 which extend from the ends of the presser plates through suitable openingsin the ends of the springs.

The superposed wires and strips are pressed upon thewinding form, so as tolay the turns thereof compactlyand accurately one upon the other, by means of an ironing roller 72 which is carried by a slide 7 3 that 15 is slidably mounted in a box 74 that is attached to the block 31, said box being slotted at its'side adjacent to the winding form for the passage of the shaft 75 of said roller. The said slide is shown as square to engage a corresponding guideway in the box, but may be otherwise formed to prevent axial rotation thereof in-the box.

thereon, so as to jenable the roller to yield "to follow thestraight sides or portionsans-ms it away from the corners of the form and thereof. I hisiseffected in the present in: stance by means of a tension spring 78, which is attached at one-end to a link- 79 that is in turn fixed in any: suitable manner to the slide 73', and-the spring-is attachedat its rear end to an adjustable bar 80 that is-adaptedto be adjustably supported in a standardSZwhich ri-sesfrom the bracket 83- attached to the bed plate of the machine.

The connection bet-weenthe standard 82 and adjusting' bar consists, in thepresent in-' stance, in providing the upper end of the standardwith an upwardly opening notchto receive the adjusting bar edgewise and providing-the adjusting bar with a series of pins '85 spacedilongitudinally thereon; Said pins reliably hold the spring while permit-' ting'ready adjustment of fthe tension thereof to be effected.

In orderthat'the-coil may be madeof the proper number of turns, I have-prov-ided counting attachment Whichis made as follows: 90 designates acounter of approved construction that is supported on: a

standard 91 which; rises from the bed plate."

The actuating arm 93* of said. counteris connected by av1lI1l-94 with oneend of alever 95. Said lever is pivoted at 96 to-the bedpla-teand extends-at itssother end in the path of? the pinior tappet: 97 carried by, the

gear wheel 18 Inasmuch asthe-gea-r Wheel rotates once for each rotation of the winding is form,- the counting off the rotations of theform 14: is removably attachedtoits shaft 15 so: that coils of' different dimensions, Within certainlimits may be formed on:the'- samemachine; Moreovenwthe wire a-ndstrip guiding and assembling) devices are also capable ofremoval fromthe machine to permit their. replacement by others of different:

sizes, so as'sto enable the'machine to operate on wireiand' strips of? diflerent: .w-i diths; The

or? other polygonal shaped z'winding form to preventl parting tension being exerte'd on the: strips, inasmuch asthemotion-givenito:said form, due to its polygonahshape, gives. a jerky movementitothe strips, and the light tension under which the rollers are placed readily yields. to the irregular.action'gof 'the feed mechanism: This lS'riL verynimportant,

practical feature of the construction,.inas1- much as it-prevents the thin paper :strip 0r.-

' strips from beinggtorn by the irregula-r feed ingaction, cl

i It is; understoodi that variations in the structural details of the machine may be made without departure from the spirit of the invention and the'invention is 'notlimited te such details except as hereinafter made the subject: of specific claims and as imposedby the" prior art. I' claim as my invention I 1. A machine for Windingjflat wire coils with a thin insulating strip or strips between theturns thereof, comprising wire and strip supporting means, winding means and assemblmg' and guiding means between the supporting and winding means, the guidingmeans-embracing lateral fixeduides for separate engagement by the side edges of the-wire and stripor strips.- I 2; A machine for-Winding fiat Wire coilswithv an insulatingstrip between the turns thereof, com.prisingwinding means and wire and strip guiding and assembling means,

the latter comprising closely spaced guide ways for-the wire and strip having lateral fixed, gl'iide surfaces for engagement with the'edgesof the wireand strip for maintaining the Wire in: accurate lateral alinement relativelyto the strip.

3.. A machine for winding fiat wire coils:

with an insulating strip or strips between the turns thereof comprising winding means, Wire pressing means and wire and strip guiding and assembling means between the wire' pressing and the winding means, said guiding means embracing fixed lateral guide surfaces for engagementwith the side edges ofsaid wire andthe strip-0r strips.

7 L A machine for winding flat wire coils with an insulating strip between the turns I thereof co'mprising Winding means, wire pressing-.ineans for pressing out inequaliti es in the wire, with means for varying the pressure onisaidwire, and wire and-strip guiding-and assembling; means between the wire pressingtand winding means. i

5.e-A.machine for Winding'fiat Wire coils.

withan insulating strip between the turns with the'windingjform, the guiding means embracing' fixed lateral guide surfaces to maintain the:- Wireand stripfin predetermined latera-lrelation;

6..'A' machine for 'winding' fiat wire coils withaan insulating strip between the turns thereof comprising arotative winding form ,of non-circular cross-section, vwith means to rotate, it, wire: and strip lateral guiding,

assemblingiand' tensioning means in alinement with the: WlIldlngi form, and a spring pressed roller to bear upon the wire and,

vstrip .and: the form: at the point Where the wire and stripeiiter upon the form. 4 ,1 7. A machine for windingiflat wire coils with an insulating strip between the turns thereof comprising wire and strip sup-' porting means, a rotative winding form, with means to rotate it, Wire and strip lateral guiding, assembling and tension means to maintain the wire and strip in predetermined lateral relation, and to -maintain a light tension thereon, and a spring pressed roller to bear upon the wire and strips and the form at the point where they enter upon the winding form. I r

8. A- machine for winding flat wire coils with an insulating strip between the turns thereof comprising a" winding form about which the wire and strip are wound in alternate layers,- with means to rotate the form, wire pressing means, and wire and strip lateral guiding and assembling means between the pressing means and the winding form and in alinement with said form.

9. A machine for winding flat wire coils with an insulating strip between the turns thereof comprising a winding form about which the wire and strip are wound in a1:

ternate layers, with means to rotate the form, wire pressing means, wire and strip to the strip and spring pressed means to hold the wire and strip against ing surfaces. a

11. A machine for winding, flat wire coils with an insulating strip between the turns their guidthereof comprising a rotative winding form,

with means to rotate it, wire and strip lateral guiding and assembling means in alinement with the winding form, a roller for pressing the'wire and strip against the form at the point where the wire and stripenter upon the form, a slide carryingsaid roller,

' with means for guiding the same, and a ment with the winding form, a roller for so spring connected to said slide to draw said roller toward the winding form. V

' 12.- A- machine' for wind'ng with an insulating strip between the turns thereof comprising a rotative form," with means torotate-it; wire and strip lat-- eral guiding and assembling-means in alinepressing the wire and strip against the form at the Point where the wire and str1p enter upon the form during the-rotation of the latter, a slide carrying .said roller, with means for guiding the same, a spring conflat wire coils" nected to said slide to draw said roller toward the winding form, and means to adjust the force of the spring acting on the said roller.

13. A machine for winding flat wire coils with an insulating strip between the turns thereof comprising a rotative winding form, with means to rotate it, wire and stripguiding and assembling means in alinement with the winding form, a roller for pressing the wire and strip against the form during the rotation of the latter, 'a slide carrying said roller, means for guiding the same, a tension spring connected at one end to the said slide, an adjusting bar connected to the other end of the spring adapted to engage a notched part of the frame and projections spaced purpose set forth.

'14. Ina machine for the purpose set forth, the combination with a winding form, of a combined guiding and assembling device for the fiat wire and Insulating strip comprising guide ways for the wire and strip, separated by a thin wall and dimensioned to hold the wire and strips laterally in place, and means to hold the wire and strips against said wall.

15. In amachine for the purpose set forth,

the combination with a winding form, of a combined guiding and assembling device .for

- the fiat wire and insulating strip comprising guide ways for the wire and strip, separated longitudinally of the adjusting bar, for the by a thin wall and dimensioned to hold the wire and strip laterally in place, presser members engaging said wlre and said strips,

'and spring pressed means engaging said presser members.

16. In a machine for the purpose-set forth, the combination with a winding'form, of a combined guiding and assembling device for the fiat wire and insulating strip comprising guide ways for the wire and strip, separated by a thin wall and dimensioned to hold the wire and strip laterally in place, presser members engaging said wire and said strips, bowed springs engaging at their ends said resser members and screws bearing against the bowed portions of said springs.

17 In amachine for the purpose set forth,

the combination with a frame, of a winding device, with means for actuating the same,

means for supporting a roll of flat wire,

means for separately supporting two rolls of insulating strips, and means to guide the v wire and strips and to assemble them fiatwise together in adirance of said; winding means, the gjiding meanseinbracrng guides to engagetheside and strip. a

18. In a machine 'for the purpose set forth,

edges of the wire the combination with a frame, of a non-circular winding form, with means to actuate .the same, means for supporting a roll of fiat wire, means for supporting a roll of in sulating strip, means to guide the wire and strip and to assemble them fiatwise together in advance of said Winding form, embracing fixed lateral guides for engagement with the side edges of the strip and Wire, and means to apply delicate tension to the said strip between its roll and, said guiding and assembling means. 1

19. In a machine for the purpose set forth, the combination with a frame, of a non-circular Winding form, with means for actuating the same, means for supporting a roll of flat Wire, means for separately supporting two rolls of insulating strips, means to guide the WlIe and strips and to assemble them flatwise together in advance of said windcooperating with the guiding and assembling means.

20. In a machine for the purpose set forth, the combination with a frame, of a winding device, with means for actuating the same, means for supporting a roll of wire, and for supporting two rolls of insulating strips, means to. guide the wire and strips and to assemble them fiatwise together in advance of said Winding device, and wire rolling and pressing meansbetween the wire roll and the guiding and assemblin means.

In testimony, that I c aim the foregoing as my invention I afiix my signature in the presence of two witnesses, this 20th day of January, A. D. 1913.

CHESTER H. THORDARSON. Witnesses:

W. L. HALL,

. G. E. DOW'LE. 

